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Solderable DIY project kit for Engineering & Diploma students

Product of choice for Engineering & Diploma students worldwide.

Do-It-Yourself Kit

Rs. 4,499

Rs. 3,600

Includes complete hardware with plain PCB and a pre-programmed controller for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. Thorough understanding from the Problem definition to Circuit Design to Programming, Testing, Troubleshooting and finally building a working hardware project.

Tool Kit


Rs. 0

Includes Digital Multimeter, Soldering Iron, Screw driver, Cutter, to be used with Do-It-Yourself Kit to build the project.

Loaded and Tested PCB


Rs. 0

Pre-soldered and tested PCB. Choose this option only if you are short on time. Only works along with the Do-It-Yourself Kit. (Can be purchased later)

Total Rs. 0

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The aim of this project is to develop a low voltage and high voltage tripping mechanism to protect the load from damage. The fluctuation in AC mains supply is frequent in homes and industries.

The sensitive electronic devices in these conditions can get easily damaged. It is preferable to have a tripping mechanism to protect the load.

This proposed system will trip the load in the event of the input voltage falling below/above a set value. Two 555 timers are used as window comparator. This delivers an error output if the input voltage to them crosses the range beyond the voltage window.

A relay is then operated to cutoff the load for safety reasons. A lamp is used as load in this project.

The concept in future can be extended by integrating an alarm, which sounds when voltage fluctuations occur. It can also be interfaced with a GSM modem to convey alert message to the user via SMS to take appropriate action.

Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Call/mail for Tech Support from 10 am - 7 pm.
Can be Customized for Arduino, Raspberry Pi, PIC
Non-Microcontroller Project.
Over Voltage or Under Voltage Tripping Mechanism
Hardware Requirements
  • 555 Timers
  • LED
  • Voltage Regulator
  • Resistors
  • Potentiometer
  • Capacitors
  • Diodes
  • Relay
  • Lamp
  • Transformer
Software Requirements
Q & A
Q:  What is over and under voltage protection?
A:  Tripping the load under low voltage and high voltage conditions is over and under voltage protection.
Q:  Is there any alarm indication provided for abnormal conditions?
A:  Yes, a buzzer continuously beeps for these conditions
Q:  Can I replace lamp with any load?
A:  Yes, any electrical load up to 200W can be used.
Q:  What is the formula for calculating smoothing capacitor value?
A:  There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.
Average Rating
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Showing 4 of 13 reviews Show All
Rohit kumar, patna on 12th November, 2015, 07:11 PM

I and my friends has been suggested this project through my seniors.
Because of my seniors suggestion, we are very interested to buy the project kit here.
purchased through online.
It’s easy to understand.

Nimika SK, Nagpur on 1st June, 2015, 05:48 PM

I found Edgefx in Google when I was searching for my Academic project.I decided to buy a kit from Edgefx because by seeing the website.The Kit got delivered to me in time with all the right components.No Improvements required.

C.Sainath, Hyderabad on 30th May, 2015, 06:11 PM

I come to know about Edgefx through Internet. I used Btech projects for final year as a keyword in Google.I decided because it is reasonable, quick delivery and nearest distance.The kit delayed for two hours.Initially Ms. Suvarna replied to my call and after that Mr. Mohan helped me while we approached to office.Improvements should be in the Project description and overview.

Venkatesh, Nellore on 30th May, 2015, 04:45 PM

Yes the kit delivered to me on right time with the right components.Initially I have a doubt but it is cleared by your team.The technical support is good.The Soldering kit should be good enough.I recommended to my college juniors.

Rating Breakdown (13 Reviews)

Tool kit cannot be purchased individually.


Edgefx Technologies Pvt. Ltd.,
Plot No. 105, 3rd Floor,
Liberty Plaza, Himayathnagar,
Hyderabad - 500029,
Telangana, India
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